Looks like quite a reach for that 4-way stick. Won't that get uncomfortable pretty quick?
Assuming that load=enter, the admin buttons look pretty good. I use menu (tab) instead of mute, but you may want to avoid having customers on the phone hearing the turtles yell "cowabunga!"
Looks like there is a lot of empty space between the player buttons and the admin buttons. Have you considered reducing that gap somewhat?
For what reason? (other than the thing being huge)
You need a better reason? Consider how far you have to reach to hit the desired buttons.
Why do so many CPs have the seventh button in that location?
Nothing wrong with the general location, just some folks have different layout preferences and use 1/2/3/* instead of 7/4/5/6 as 1, 2, 3, and 4 for neo geo games. (Once again, see Slagcoin for a variety of options.)
1 2 3 *
4 5 6
7
If you compare the center-to-center distance from 4-1 or 4-5, the distance from 4-7 will be 1.4 times as far, meaning more effort/strain to reach it.
Definitely make a cardboard or hardboard mockup with real buttons before you drill on the panel.
Panel is way too big and deep.
It's big and deep for a reason: sight lines to the 27" screen, and its a 27" screen so you don't want to be too close anyway
Do you have children or do you live in a frat house? If neither are true then player 3 and 4 will almost never get used. Grown men don't like to squish in like that. I know from experience they will take turns 2 at a time on a 4 player machine instead of squeezing in all at once.
Well, on one hand how is the CP too big and yet too small at the same time? I've printed this out and seems like it will work with my buddies and we're not small. I decided on a four player cabinet and that's what I'm building damnit! This may also end up in the office where the four players may get used more than average. I also really want the simpsons/TNMT experience to be really good.
I think he meant too big depth-wise and too small width-wise.
With a screen that size I can understand wanting to be sure the players are standing far enough away.
+1 on probably not using P3/P4 very much, but YMMV.
One way to keep the P3/P4 option available is to make a 2-player panel with Neutrik USB feedthrus on the side of the CP box to plug in USB gamepads.
Bonus: You can also use them for other specialized/standalone controllers like analog sticks, SW yoke, Tron stick, dedicated Defender/Stargate layout, etc.
Scott